[ALSA] cs4281 - Fix the check of timeout in probe

Fix the check of timeout in probe routines to work properly
reagrdless of HZ (ALSA bug#1976).

Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/pci/cs4281.c b/sound/pci/cs4281.c
index 4221dfe8bd7ef1bf1eae067e0eff2a371c57e9ae..ac4e73f69c1d3de12e38b7036ecd00307f47c505 100644 (file)
--- a/sound/pci/cs4281.c
+++ b/sound/pci/cs4281.c
@@ -1416,7 +1416,7 @@ static int __devinit snd_cs4281_create(struct snd_card *card,
 static int snd_cs4281_chip_init(struct cs4281 *chip)
 {
        unsigned int tmp;
-       int timeout;
+       unsigned long end_time;
        int retry_count = 2;
 
        /* Having EPPMC.FPDN=1 prevent proper chip initialisation */
@@ -1496,7 +1496,7 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
        /*
         * Wait for the DLL ready signal from the clock logic.
         */
-       timeout = 100;
+       end_time = jiffies + HZ;
        do {
                /*
                 *  Read the AC97 status register to see if we've seen a CODEC
@@ -1504,8 +1504,8 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
                 */
                if (snd_cs4281_peekBA0(chip, BA0_CLKCR1) & BA0_CLKCR1_DLLRDY)
                        goto __ok0;
-               msleep(1);
-       } while (timeout-- > 0);
+               schedule_timeout_uninterruptible(1);
+       } while (time_after_eq(end_time, jiffies));
 
        snd_printk(KERN_ERR "DLLRDY not seen\n");
        return -EIO;
@@ -1522,7 +1522,7 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
        /*
         * Wait for the codec ready signal from the AC97 codec.
         */
-       timeout = 100;
+       end_time = jiffies + HZ;
        do {
                /*
                 *  Read the AC97 status register to see if we've seen a CODEC
@@ -1530,20 +1530,20 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
                 */
                if (snd_cs4281_peekBA0(chip, BA0_ACSTS) & BA0_ACSTS_CRDY)
                        goto __ok1;
-               msleep(1);
-       } while (timeout-- > 0);
+               schedule_timeout_uninterruptible(1);
+       } while (time_after_eq(end_time, jiffies));
 
        snd_printk(KERN_ERR "never read codec ready from AC'97 (0x%x)\n", snd_cs4281_peekBA0(chip, BA0_ACSTS));
        return -EIO;
 
       __ok1:
        if (chip->dual_codec) {
-               timeout = 100;
+               end_time = jiffies + HZ;
                do {
                        if (snd_cs4281_peekBA0(chip, BA0_ACSTS2) & BA0_ACSTS_CRDY)
                                goto __codec2_ok;
-                       msleep(1);
-               } while (timeout-- > 0);
+                       schedule_timeout_uninterruptible(1);
+               } while (time_after_eq(end_time, jiffies));
                snd_printk(KERN_INFO "secondary codec doesn't respond. disable it...\n");
                chip->dual_codec = 0;
        __codec2_ok: ;
@@ -1561,7 +1561,7 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
         *  the codec is pumping ADC data across the AC-link.
         */
 
-       timeout = 100;
+       end_time = jiffies + HZ;
        do {
                /*
                 *  Read the input slot valid register and see if input slots 3
@@ -1569,8 +1569,8 @@ static int snd_cs4281_chip_init(struct cs4281 *chip)
                 */
                 if ((snd_cs4281_peekBA0(chip, BA0_ACISV) & (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4))) == (BA0_ACISV_SLV(3) | BA0_ACISV_SLV(4)))
                         goto __ok2;
-               msleep(1);
-       } while (timeout-- > 0);
+               schedule_timeout_uninterruptible(1);
+       } while (time_after_eq(end_time, jiffies));
 
        if (--retry_count > 0)
                goto __retry;